CN109357971A - A kind of float type magnetorheological liquid viscosity test macro and test method - Google Patents
A kind of float type magnetorheological liquid viscosity test macro and test method Download PDFInfo
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- CN109357971A CN109357971A CN201811536133.5A CN201811536133A CN109357971A CN 109357971 A CN109357971 A CN 109357971A CN 201811536133 A CN201811536133 A CN 201811536133A CN 109357971 A CN109357971 A CN 109357971A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
- G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
- G01N11/06—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by timing the outflow of a known quantity
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Abstract
Of the invention a kind of float type magnetorheological liquid viscosity test macro and test method, test macro include: test box and externally-applied magnetic field device, and the test box includes transparent cabinet, top cover, baffle, buoy and floating gage；The top cover is sealed on the top of the box, and top cover is equipped with liquid injection port, and floating gage is fixed in cabinet, and buoy is arranged in cabinet, and the bottom of box is equipped with multiple fluid holes, and baffle plate setting is on the outside of the bottom of box for blocking fluid hole；The amount of magnetic rheological liquid outflow in certain time is measured by buoy and floating gage under the conditions of different externally-applied magnetic fields, and then calculates the viscosity of magnetic rheological liquid.Test system structure of the invention is simple, easy to operate, can accurately measure viscosity of the magnetorheological fluid under different magnetic field.
Description
Technical field
The invention belongs to technical field of civil engineering, it is related to a kind of float type magnetorheological liquid viscosity test macro and test
Method.
Background technique
Magnetorheological fluid is mixed by high magnetic permeability, low hysteresis small soft magnetic particles and non-magnetic liquid
Suspended substance.Its main working principle is: changing the size of its viscosity according to the power of magnetic field strength.This suspended substance is zero
The Newtonian fluid characteristic of low viscosity is showed under magnetic field condition；And under strong magnetic field action, then show high viscosity, low-flow
Bingham bulk properties；The suspended liquid status that rear magnetorheological fluid recovery is in Newtonian fluid characteristic is withdrawn in magnetic field.This liquid transformation
It is again controllable, reversible from the process that semisolid is changed into liquid and the energy consumption very little in control process for semisolid, fits
Wider range, no pollution to the environment.However, structure is complicated, inconvenient and leakage field is existing for various test devices at present
As serious, the measurement error for resulting in magnetorheological liquid viscosity is larger.
Summary of the invention
The object of the present invention is to provide a kind of float type magnetorheological liquid viscosity test macro and test method, structure letters
List, design is reasonable, measurement result is accurate, easy to operate.
A kind of float type magnetorheological liquid viscosity test macro of the invention, comprising: test box and externally-applied magnetic field device, institute
Stating test box includes transparent cabinet, top cover, baffle, buoy and floating gage；The top cover is sealed on the top of the box, top cover
It is equipped with liquid injection port, floating gage is fixed in cabinet, and buoy is arranged in cabinet, and the bottom of box is equipped with multiple fluid holes, baffle
It is arranged on the outside of the bottom of box for blocking fluid hole；It is certain by buoy and floating gage measurement under the conditions of different externally-applied magnetic fields
The amount that magnetic rheological liquid flows out in time, and then the viscosity of magnetic rheological liquid is calculated.
In float type magnetorheological liquid viscosity test macro of the invention, the liquid injection port is funnel-form liquid injection port.
In float type magnetorheological liquid viscosity test macro of the invention, the floating gage is cylindrical bar, the cylinder
The upper end of bar is fixed by screws on top cover, and when top cover is sealed on cabinet, the lower end of cylindrical bar resists the bottom of cabinet, circle
Mast is provided with graduation mark.
In float type magnetorheological liquid viscosity test macro of the invention, the floating gage is flaky to be provided with
Graduation mark, laminar floating gage are fixed on the side wall of the box body.
In float type magnetorheological liquid viscosity test macro of the invention, the cabinet is equipped with multiple be used for cabinet
With the buckle of top cover fastening.
In float type magnetorheological liquid viscosity test macro of the invention, bracket is equipped on the outside of the bottom of box.
In float type magnetorheological liquid viscosity test macro of the invention, there are two cards for projection on the outside of the bottom of box
Slot, injection magnetic rheological liquid are in the process closed multiple fluid holes of the bottom of box by the way that baffle to be inserted into card slot.
In float type magnetorheological liquid viscosity test macro of the invention, the transparent cabinet, baffle, is floated at top cover
Mark and floating gage are made of PVC material；Bracket is made of timber.
The present invention also provides a kind of float type magnetorheological liquid viscosity test methods, include the following steps:
Step 1: baffle being inserted into card slot, the fluid hole of the bottom of box is closed；
Step 2: fastening buckle locks top cover and bin enclosure；
Step 3: magnetic rheological liquid is slowly injected in cabinet by funnel-form liquid injection port, the magnetic rheological liquid of injection
Height is no more than the 4/5 of floating gage height；
Step 4: extraction baffle, the time t of record magnetorheological fluid outflow height h；
Step 5: the viscosity of magnetic rheological liquid is calculated according to following equation:
Wherein, Δ P=ρ gh, ρ are the density of magnetic rheological liquid, and h is the magnetic rheological liquid outflow measured by floating gage
Highly, R is the radius of fluid hole,V is the volume of the magnetic rheological liquid flowed out in time t, and L is constant 1；
Step 6: applying different externally-applied magnetic fields, repeat step 1 to 5, test magnetorheological fluid under different applied field strengths
The viscosity of body.
In the prior art, many for the detection device of magnetorheological fluid viscosity, but structure is complicated, inconvenient and leakage field is existing
It is larger that its measurement error is caused as the problems such as serious.A kind of float type magnetorheological liquid viscosity test macro of the invention and survey
Method for testing, simple structure is easy to operate, and measurement result is accurate.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of float type magnetorheological liquid viscosity test macro of the invention.
Specific embodiment
As shown in Figure 1, a kind of float type magnetorheological liquid viscosity test macro of the invention, comprising: test box and additional
Magnetic field device, the test box include transparent cabinet 1, top cover 2, baffle 3, buoy 4 and floating gage 5.The top cover 2 is sealed on
1 top of cabinet, top cover 2 are equipped with liquid injection port 6, and floating gage 5 is fixed in cabinet 1, and buoy 4 is arranged in cabinet 1, cabinet
1 bottom is equipped with multiple fluid holes 7, and the setting of baffle 3 is in 1 bottom outside of cabinet for blocking fluid hole 7；In different externally-applied magnetic field items
The amount of magnetic rheological liquid outflow in certain time is measured under part by buoy 4 and floating gage 5, and then calculates magnetic rheological liquid
Viscosity.
When it is implemented, the liquid injection port 6 is funnel-form liquid injection port.The cabinet 1 is equipped with multiple be used for 1 He of cabinet
The buckle 8 that top cover 2 fastens.1 bottom outside of cabinet is equipped with bracket 9.The 1 bottom outside projection of cabinet there are two card slot,
Multiple fluid holes 7 of 1 bottom of cabinet are closed by the way that baffle 3 to be inserted into card slot during injection magnetic rheological liquid.
When it is implemented, the transparent cabinet 1, top cover 2, baffle 3, buoy 4 and floating gage 5 are made of PVC material；
Bracket 9 is made of timber.
As an implementation, the floating gage 4 is cylindrical bar, and the upper end of the cylindrical bar is fixed by screws in top
On lid 2, when top cover 2 is sealed on cabinet 1, the lower end of cylindrical bar resists the bottom of cabinet 1, and cylindrical bar is provided with graduation mark.
As another embodiment, the floating gage 4 is flaky is provided with graduation mark, laminar floating gage
It is fixed on the side wall of cabinet 1.
A kind of float type magnetorheological liquid viscosity test method of the invention, includes the following steps:
Step 1: baffle being inserted into card slot, the fluid hole of the bottom of box is closed；
Step 2: fastening buckle locks top cover and bin enclosure；
Step 3: magnetic rheological liquid is slowly injected in cabinet by funnel-form liquid injection port, the magnetic rheological liquid of injection
Height is no more than the 4/5 of floating gage height；
Step 4: extraction baffle, the time t of record magnetorheological fluid outflow height h；
Step 5: the viscosity of magnetic rheological liquid is calculated according to following equation:
Wherein, Δ P=ρ gh, ρ are the density of magnetic rheological liquid, and h is the magnetic rheological liquid outflow measured by floating gage
Highly, R is the radius of fluid hole,V is the volume of the magnetic rheological liquid flowed out in time t, and L is constant 1；
Step 6: applying different externally-applied magnetic fields, repeat step 1 to 5, test magnetorheological fluid under different applied field strengths
The viscosity of body.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of float type magnetorheological liquid viscosity test macro characterized by comprising test box and externally-applied magnetic field device,
The test box includes transparent cabinet, top cover, baffle, buoy and floating gage；The top cover is sealed on the top of the box, top
It covers and is equipped with liquid injection port, floating gage is fixed in cabinet, and buoy is arranged in cabinet, and the bottom of box is equipped with multiple fluid holes, gear
Plate is arranged on the outside of the bottom of box for blocking fluid hole；Pass through buoy and floating gage measurement one under the conditions of different externally-applied magnetic fields
The amount that interior magnetic rheological liquid of fixing time flows out, and then the viscosity of magnetic rheological liquid is calculated.
2. float type magnetorheological liquid viscosity test macro as described in claim 1, which is characterized in that the liquid injection port is leakage
Bucket-shaped liquid injection port.
3. float type magnetorheological liquid viscosity test macro as described in claim 1, which is characterized in that the floating gage is circle
The upper end of mast, the cylindrical bar is fixed by screws on top cover, and when top cover is sealed on cabinet, the lower end of cylindrical bar is resisted
The bottom of cabinet, cylindrical bar are provided with graduation mark.
4. float type magnetorheological liquid viscosity test macro as described in claim 1, which is characterized in that the floating gage is in thin
Sheet is provided with graduation mark, and laminar floating gage is fixed on the side wall of the box body.
5. float type magnetorheological liquid viscosity test macro as described in claim 1, which is characterized in that the cabinet is equipped with
Multiple buckles for fastening cabinet and top cover.
6. float type magnetorheological liquid viscosity test macro as described in claim 1, which is characterized in that outside the bottom of box
Side is equipped with bracket.
7. float type magnetorheological liquid viscosity test macro as described in claim 1, which is characterized in that outside the bottom of box
There are two card slots for side projection, inject multiple out liquid of the magnetic rheological liquid in the process by being inserted into baffle in card slot by the bottom of box
Hole closing.
8. float type magnetorheological liquid viscosity test macro as described in claim 1, which is characterized in that the transparent case
Body, top cover, baffle, buoy and floating gage are made of PVC material；Bracket is made of timber.
9. a kind of float type magnetorheological liquid viscosity test method, which comprises the steps of:
Step 1: baffle being inserted into card slot, the fluid hole of the bottom of box is closed；
Step 2: fastening buckle locks top cover and bin enclosure；
Step 3: magnetic rheological liquid slowly being injected in cabinet by funnel-form liquid injection port, the height of the magnetic rheological liquid of injection
No more than the 4/5 of floating gage height；
Step 4: extraction baffle, the time t of record magnetorheological fluid outflow height h；
Step 5: the viscosity of magnetic rheological liquid is calculated according to following equation:
Wherein, Δ P=ρ gh, ρ are the density of magnetic rheological liquid, and h is the height of the magnetic rheological liquid outflow measured by floating gage
Degree, R are the radius of fluid hole,V is the volume of the magnetic rheological liquid flowed out in time t, and L is constant 1；
Step 6: applying different externally-applied magnetic fields, repeat step 1 to 5, test magnetic rheological liquid under different applied field strengths
Viscosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536133.5A CN109357971A (en) | 2018-12-14 | 2018-12-14 | A kind of float type magnetorheological liquid viscosity test macro and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811536133.5A CN109357971A (en) | 2018-12-14 | 2018-12-14 | A kind of float type magnetorheological liquid viscosity test macro and test method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737531A (en) * | 2005-07-11 | 2006-02-22 | 中国矿业大学 | Magnetic liquid apparent viscosity tester and method of testing thereof |
| CN203845274U (en) * | 2014-05-23 | 2014-09-24 | 上虞市东海化工有限公司 | Metering-facilitated storage tank |
| CN204008379U (en) * | 2014-08-18 | 2014-12-10 | 江西华宇科技有限公司 | A kind of novel glue viscosity test device |
| CN209356357U (en) * | 2018-12-14 | 2019-09-06 | 沈阳建筑大学 | A kind of float type magnetorheological liquid viscosity test macro |
-
2018
- 2018-12-14 CN CN201811536133.5A patent/CN109357971A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737531A (en) * | 2005-07-11 | 2006-02-22 | 中国矿业大学 | Magnetic liquid apparent viscosity tester and method of testing thereof |
| CN203845274U (en) * | 2014-05-23 | 2014-09-24 | 上虞市东海化工有限公司 | Metering-facilitated storage tank |
| CN204008379U (en) * | 2014-08-18 | 2014-12-10 | 江西华宇科技有限公司 | A kind of novel glue viscosity test device |
| CN209356357U (en) * | 2018-12-14 | 2019-09-06 | 沈阳建筑大学 | A kind of float type magnetorheological liquid viscosity test macro |
Non-Patent Citations (1)
| Title |
|---|
| 肖林京 等: "磁流变液的流变性能分析", 山东科技大学学报（自然科学版）, vol. 35, no. 6, pages 2 * |
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